Find a formula for the nth term of the sequence.1, - 
, 
, - 
, 
(reciprocals of squares with alternating signs)
A. an = 
B. an = 
C. an = 
D. an = 
Answer: D
Mathematics
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Factor the expression completely. If the polynomial is prime, state this as your answer.49x2 - 16y2
A. (7x + 4y)(7x - 4y) B. prime C. (7x + 4y)2 D. (7x - 4y)2
Mathematics
Solve the problem.Fahrenheit temperatures can be obtained from Celsius (centigrade) by multiplying by 1
and adding 32°. What Fahrenheit temperature corresponds to a Celsius temperature of 44°?
A. 67
°F
B. 76
°F
C. 136
°F
D. 111
°F
Mathematics
Solve the problem.Maria and Charlie can deliver 100 papers in 2 hours. How long would it take them to deliver 95 papers?
A. 1.9 hours B. 2.9 hours C. 2.1 hours D. 190 hours
Mathematics
Determine the nature of the solutions of the equation.w2 - 5w + 7 = 0
A. Two real B. One real C. Two nonreal
Mathematics